<template>
  <div>
    <el-form ref="form" label-width="80px">
      <el-form-item label="SPU名称"> {{ spu.spuName }}} </el-form-item>
      <el-form-item label="SPU名称">
        <el-input placeholder="SPU名称" v-model="skuInfo.skuName"></el-input>
      </el-form-item>
      <el-form-item label="价格(元)">
        <el-input
          placeholder="价格(元)"
          type="number"
          v-model="skuInfo.price"
        ></el-input>
      </el-form-item>
      <el-form-item label="重量(千克)">
        <el-input placeholder="重量(千克)" v-model="skuInfo.weight"></el-input>
      </el-form-item>
      <el-form-item label="规格描述">
        <el-input
          placeholder="规格描述"
          type="textarea"
          rows="4"
          v-model="skuInfo.skuDesc"
        ></el-input>
      </el-form-item>
      <el-form-item label="平台属性">
        <el-form :inline="true" ref="form" label-width="80px">
          <el-form-item
            :label="attr.attrName"
            v-for="attr in attrInfoList"
            :key="attr.id"
          >
            <el-select placeholder="请选择" v-model="attr.attrIdAndValueId">
              <el-option
                :label="attrValue.valueName"
                :value="`${attr.id}:${attrValue.id}`"
                v-for="attrValue in attr.attrValueList"
                :key="attrValue.id"
              ></el-option>
            </el-select>
          </el-form-item>
        </el-form>
      </el-form-item>
      <el-form-item label="销售属性">
        <el-form :inline="true" ref="form" label-width="80px">
          <el-form-item
            :label="saleAttr.saleAttrName"
            v-for="saleAttr in spuSaleAttrList"
            :key="saleAttr.id"
          >
            <el-select placeholder="请选择" v-model="saleAttr.attrIdAndValueId">
              <el-option
                :label="saleAttrValue.saleAttrValueName"
                :value="`${saleAttr.id}:${saleAttrValue.id}`"
                v-for="saleAttrValue in saleAttr.spuSaleAttrValueList"
                :key="saleAttrValue.id"
              ></el-option>
            </el-select>
          </el-form-item>
        </el-form>
      </el-form-item>
      <el-form-item label="图片列表">
        <!-- selection-change	当选择项发生变化时会触发该事件 -->
        <el-table
          style="width: 100%"
          border
          :data="spuImageList"
          @selection-change="handleSelectionChange"
        >
          <el-table-column type="selection" width="60"> </el-table-column>
          <el-table-column prop="prop" label="图片" width="width">
            <template slot-scope="{ row }">
              <img :src="row.imgUrl" style="width: 100px; height: 100px" />
            </template>
          </el-table-column>
          <el-table-column prop="imgName" label="名称" width="width">
          </el-table-column>
          <el-table-column prop="prop" label="操作" width="width">
            <template slot-scope="{ row }">
              <el-button
                type="primary"
                v-if="row.isDefault == 0"
                @click="changeDefault(row)"
                >设置默认</el-button
              >
              <el-button v-else>默认</el-button>
            </template>
          </el-table-column>
        </el-table>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="save">保存</el-button>
        <el-button @click="cancel">取消</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
export default {
  name: "SkuForm",
  data() {
    return {
      spuImageList: [], //存放图片数据
      spuSaleAttrList: [], //存放销售属性数据
      attrInfoList: [], //存放平台属性数据
      skuInfo: {
        //收集sku数据字段
        // 第一类：父组件给的数据
        category3Id: 0,
        spuId: 0,
        tmId: 0,
        // 第二类：需要通过数据双向绑定收集的数据
        skuName: "",
        price: 0,
        weight: "",
        skuDesc: "",
        // 第三类：需要自己书写代码
        skuDefaultImg: "", //默认图片
        skuImageList: [
          /* {
            id: 0,
            imgName: "string",
            imgUrl: "string",
            isDefault: "string",
            skuId: 0,
            spuImgId: 0,
          }, */
        ],
        skuAttrValueList: [
          /* {
            attrId: 0,
            valueId: 0
          }, */
        ],
        skuSaleAttrValueList: [
          /* {
            id: 0,
            saleAttrId: 0,
            saleAttrName: "string",
            saleAttrValueId: 0,
            saleAttrValueName: "string",
            skuId: 0,
            spuId: 0,
          }, */
        ],
      },
      spu: {},
      imageList: {}, //收集图片数据的字段
    };
  },
  methods: {
    // 获取skuForm数据
    async getData(category1Id, category2Id, spu) {
      // 收集父组件给予的数据
      this.skuInfo.category3Id = spu.category3Id;
      this.skuInfo.spuId = spu.id;
      this.skuInfo.tmId = spu.tmId;
      this.spu = spu;
      // 获取图片
      let result = await this.$API.spu.reqSpuImageLists(spu.id);
      console.log(result, "图片数据");
      if (result.code == 200) {
        let list = result.data;
        list.forEach((item) => {
          item.isDefault = 0;
        });
        this.spuImageList = list;
      }
      // 获取销售属性数据
      let result1 = await this.$API.spu.reqSpuSaleAttrList(spu.id);
      console.log(result1, "销售属性数据");
      if (result1.code == 200) {
        this.spuSaleAttrList = result1.data;
      }
      // 获取平台属性数据
      let result2 = await this.$API.spu.reqAttrInfoList(
        category1Id,
        category2Id,
        spu.category3Id
      );
      console.log(result2, "平台属性数据");
      if (result2.code == 200) {
        this.attrInfoList = result2.data;
      }
    },
    // table复选框按钮的事件
    handleSelectionChange(params) {
      // 获取到用户选中图片的信息数据，但是缺少isDefault
      this.imageList = params;
    },
    // 排他操作
    changeDefault(row) {
      this.spuImageList.forEach((item) => {
        item.isDefault = 0;
      });
      row.isDefault = 1;
      this.skuInfo.skuDefaultImg = row.imgUrl;
    },
    // 取消按钮的事件
    cancel() {
      this.$emit("changeScenes", 0);
      // 清除数据
      Object.assign(this._data, this.$options.data());
    },
    // 保存按钮的事件
    async save() {
      // 整理参数
      const { attrInfoList, skuInfo,spuSaleAttrList,imageList } = this;
      // 整理平台属性
      let arr = [];
      attrInfoList.forEach((item) => {
        if (item.attrIdAndValueId) {
          const [attrId, valueId] = item.attrIdAndValueId.split(":");
          // 携带给服务器的参数是对象
          let obj = { attrId, valueId };
          arr.push(obj);
        }
      });
      skuInfo.skuAttrValueList = arr;
      // 整理销售属性
      skuInfo.skuSaleAttrValueList=spuSaleAttrList.reduce((prev,item) =>{
        if(item.attrIdAndValueId) {
          const [saleAttrId,saleAttrValueId]=item.attrIdAndValueId.split(":");
          prev.push({saleAttrId,saleAttrValueId})
        }
        return prev;
      },[])
      // 整理图片数据
      skuInfo.skuImageList=imageList.map(item => {
        return {
          imgName: item.imgName,
          imgUrl: item.imgUrl,
          isDefault: item.isDefault,
          spuImgId:item.id,
        }
      });
      // 发请求
      let result = await this.$API.spu.reqAddSku(skuInfo);
      if(result.code==200) {
        this.$message({type:'success',message:'添加SKU成功'})
        this.$emit("changeScenes", 0);
      }
    },
  },
};
</script>

<style>
</style>